Cardiovascular Crossword Puzzle

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Across
  1. 1. outer layer of the heart
  2. 4. abnormal or unusual heart sounds
  3. 6. cardiac muscle
  4. 9. prevent backflow of blood
  5. 11. carries on the signal from the SA Node to the bundle of his
  6. 12. of his Series of "wires” that carry the electrical impulses into the lower chambers through the septum
  7. 14. uncoordinated shuddering of heart muscles, useless pump
  8. 15. anchors valve flaps in their closed position
  9. 17. receives blood
  10. 18. pacemaker of the heart
  11. 19. Fibers distribute the impulse out to the ventricles
Down
  1. 1. graphic record of heart activity
  2. 2. wall between artia and ventricles
  3. 3. clogged coronary vessels
  4. 5. lining of the chambers and valves of the heart
  5. 7. decrease in oxygen carrying ability of blood
  6. 8. pumps blood out
  7. 10. circuit highly resistant to blood flow
  8. 13. lack of adequate blood supply to the heart
  9. 16. blood cell formation